40mm Locking Diesel Fuel Filler Neck

40mm Locking Diesel Fuel Filler Neck

The 40mm Locking Diesel Fuel Filler Neck provides a secure and professional solution for filling auxiliary diesel tanks. Featuring heavy-duty 316 stainless steel construction and a lockable cap, this filler neck is ideal for external fill headboard diesel tanks, under tray diesel tanks and custom fuel system installations.

Designed for harsh Australian conditions, the lockable cap helps protect against unauthorised access and contamination, while the corrosion-resistant stainless steel body delivers excellent durability and long service life. The 40mm hose connection and 30° angled neck design allow for easier installation where space is limited, making it ideal for 4WDs, ute trays, canopies, trucks and remote touring vehicles.

Perfect For

• External fill headboard diesel tanks

• Under tray diesel tanks

• Auxiliary fuel systems

• 4WD touring vehicles

• Ute trays and canopies

• Trucks and commercial vehicles

• Trade vehicles

• Remote work vehicles

• Custom diesel tank installations

• Long-range touring setups

Features

• 40mm hose connection

• Suitable for diesel fuel applications

• Lockable cap for added security

• Heavy-duty 316 stainless steel construction

• Corrosion resistant design

• 30° angled neck for flexible installation

• O-ring seal helps prevent dust and moisture ingress

• Cap retainer wire included

• Includes two keys

• Durable construction for harsh Australian conditions

• Ideal for permanent installations

• Designed for use with dedicated tank breathers

Secure Refuelling for Auxiliary Diesel Systems

Whether you're installing an under tray diesel tank or an external fill headboard diesel tank, the 40mm Locking Diesel Fuel Filler Neck provides a secure and durable refuelling solution. Designed for touring, trade and remote travel applications, it delivers dependable performance and helps keep your fuel system protected wherever your adventures take you.